(CNN) --Record levels of piracy and violence has forced the International Maritime Bureau (IMB) to demand greater government protection and single out Indonesia as the nation with the world's most dangerous waters.

One in five attacks on commercial shipping are conducted in Indonesian waters, says a survey released Wednesday by the British-based IMB, which is part of the International Chamber of Commerce.

A total of 21 seamen died and another 71 are still missing as a result of attacks worldwide last year, according to the IMB. Ten died in 2002.

The most recent reported attack was at the Balikpapan anchorage in Indonesia on January 23.

Ten pirates armed with knives boarded a bulk carrier, attacking and tying up the duty officer, a new incident report posted on the IMB's Web site said.

"They stole property and escaped by climbing down anchor chain," it said.

"At the time, the ship was undergoing cargo operations with barges on both sides and stevedores on board. An armed policeman was on board during the attack."

Piracy is fast becoming the norm in Asian and African waters, according to the new survey, released Wednesday by the Kuala Lumpur office of the IMB.

The report says it is becoming increasingly common for pirates to be armed with guns, including semi-automatic weapons.

Indonesian warnings

Pirates roaming Singaporean waters will be regarded as terrorists, the Singapore government says.